A minimal Rust program that sums integers read from stdin:
> printf "1\n4\n-1\n3\n" | stdio-utils
7
As a practical use-case, we can make ripgrep report
the total number of matches across several files.
For example, to count occurrences of the pattern the
in the files README.md and LICENSE in this repository:
> rg -i the README.md LICENSE --count-matches
LICENSE:18
README.md:3
> rg -i the README.md LICENSE --count-matches | cut -d: -f2 | stdio-utils
21
Run cargo bench --bench quick_comparison_against_other_solutions
to compare stdio-utils-rs against other common solutions
as discussed on the stackoverflow question
“Shell command to sum integers, one per line”.
This project was originally created as a personal project to get started with Rust development.